CVE-2026-3301

8.9 highEPSS 4.4%

A security flaw has been discovered in Totolink N300RH 6.1c.1353_B20190305. Affected by this vulnerability is the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument webWlanIdx results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

Severity

CVSS 4.0

8.9 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 4.4% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
CWEs: CWE-78, CWE-77
Published: 2026-02-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

totolink:n300rh_firmware

References

https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/N300RHv4/01_setWebWlanIdx_RCE/README.md
https://vuldb.com/?ctiid.348052
https://vuldb.com/?id.348052
https://vuldb.com/?submit.761297
https://www.totolink.net/

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